leaf_transpiration_per_area_at_Asat
Explore the data for this trait in the portal
- Label: Leaf transpiration per unit leaf area during Asat measurement (E)
- Entity URI: https://w3id.org/APD/traits/trait_0020662
- Type: numeric
- Definition: The transpiration [ENVO:02500035] rate [PATO:0000161] of plant leaves [PO:0025034] whose photosystem [GO:0009521] I and II reaction centers [GO:0009538; GO:0009539] are exposed to saturating [NCIT:C61427] photosynthetically active radiation [ENVO:01001864] and ambient atmospheric carbon dioxide [ENVO:01000451] concentrations [PATO:0000033], recorded per unit leaf area [PATO:0001323]. Transpiration rate is the rate at which plants lose water [CHEBI:15377] vapor [NCIT:C63390] through their stomata [PO:0008032].;The rate of water loss from a leaf exposed to saturating light (photosynthetically active radiation) levels and ambient carbon dioxide concentrations, recorded per unit leaf area.
- Additional comments: This trait assumes measurements were made on a leaf under changer conditions. Commercial gas exchange systems create wind inside the chamber to measure transpiration, which means transpiration inside chambers is not the same as transpiration with no chamber involved.
- units: mmol{H2O}/m2/s
- allowable range: 0.1 - 50 mmol{H2O}/m2/s
See the AusTraits Plant Dictionary (https://w3id.org/APD/traits/trait_0020662) for additional information about this trait.
Coverage
For this trait, AusTraits includes a total of 2,124 records. This includes:
- data for 176 species.
- data for 47 families.
- data from 13 datasets (see the portal Citations tab for a list of sources)